Consolidated Statement of Changes in Comprehensive Income (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statement of Changes in Comprehensive Income [Abstract]
Net income	$ 13,375,000	$ 14,215,000	$ 12,832,000
Securities available for sale
Change in net unrealized gain/loss during the period	(9,955,000)	821,000	7,114,000
Income tax expense (benefit)	(3,384,000)	278,000	2,419,000
Securities available for sale	(6,571,000)	543,000	4,695,000
Reclassification adjustment for gains included in income	(441,000)	(604,000)	(334,000)
Income tax benefit	(150,000)	(205,000)	(114,000)
Reclassification	(291,000)	(399,000)	(220,000)
Change in unrealized loss on interest rate swap	200,000	148,000	61,000
Income tax expense	68,000	50,000	21,000
Interest rate swap	132,000	98,000	40,000
Change in unrecognized pension costs	1,325,000	(848,000)	(939,000)
Income tax expense (benefit)	451,000	(288,000)	(319,000)
Pension costs	874,000	(560,000)	(620,000)
Net other comprehensive income (loss)	(5,856,000)	(318,000)	3,895,000
Comprehensive income	$ 7,519,000	$ 13,897,000	$ 16,727,000